One of the fundamental operations in machine learning is computing the inverse of a square matrix. But not all matrices have an inverse. The most common way to check if a matrix has an inverse or not ...

where matrix is a numeric matrix or literal. The HERMITE function uses elementary row operations to reduce a matrix to Hermite normal form. For square matrices this normal form is upper-triangular and ...

A well-known problem in numerical ecology is how to recombine presence-absence matrices without altering row and column totals. A few solutions have been proposed, but all of them present some issues ...